Ptyctodont | Article about Ptyctodont by The Free Dictionary
Ptyctodontida (redirected from Ptyctodont)
An order of Middle and Upper Devonian fishes of the class Placodermi in which both the head and trunk shields are present, and the joint between them is a well-differentiated and variable structure.
References in periodicals archive
The occurrence of a new ptyctodont
genus from the Rezekne RS in the East Latvian Ludza-15 drill core at a depth of 430.8 m is worthy of note.